Resilient and Sustainable Steel Structures: Advanced Manufacturing, Lifetime Extension and Disaster Mitigation

A special issue of Infrastructures (ISSN 2412-3811). This special issue belongs to the section "Infrastructures and Structural Engineering".

Deadline for manuscript submissions: 20 September 2026 | Viewed by 523

Special Issue Editors

Singapore Centre for 3D Printing, Nanyang Technological University, Singapore 639798, Singapore
Interests: additive manufacturing; advanced construction materials; construction automation; structural strengthening

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Guest Editor
Chair of Structural Mechanics and Monitoring, Institute of Structural Engineering (IBK), ETH Zurich, 8093 Zürich, Switzerland
Interests: disaster resilience; hybrid physics data modelling; infrastructure system network; decision-support framework

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Guest Editor
Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Kowloon, Hong Kong
Interests: structural health monitoring; inteligent damage assessment; structural dynamics

Special Issue Information

Dear Colleagues,

Steel structures are widely used for infrastructures and buildings, such as bridges, wind turbines, tranmission towers, offshore platforms, factories, industrial facilities, and public halls. However, many steel infrastructures worldwide are facing increasing challenges associated with aging, rising maintenance demands, exposure to extreme hazards, and increasing disaster risks. Enhancing the resilience and sustainability of steel structures has therefore become a strategic priority that aligns with the global pursuit of carbon neutrality. Achieving resilience and sustainability in steel structures requires a multi-pronged approach, including advanced manufacturing, lifetime extension, and disaster mitigation.

Advanced manufacturing technologies, such as application of green materials, robotic fabrication, and additive manufacturing, enhance production efficiency, minimize raw material consumption, and reduce embodied energy, while maintaining structural integrity. Modular design facilitates a circular economy, enabling the disassembly, reuse, and recycling of structural components.

Lifetime extension plays a pivotal role in improving sustainability and reducing the environmental footprint of steel infrastructures. Innovations in corrosion protection, advanced coating systems, and structural health monitoring  facilitate proactive and condition-based maintenance strategies. When combined with data-driven assessment, digital twins, and smart repair or strengthening solutions, these intelligent approaches can significantly optimize maintenance decision-making, enhance structural performance, and extend service life.

Disaster mitigation for steel infrastructures is essential to public safety and societal resilience under multi-hazard environments, including earthquakes, extreme winds, and cascading hazard scenarios. By integrating predictive evaluation models, preventative engineering measures, and rapid recovery solutions, steel structures can be designed and managed to not only resist extreme events but also maintain or rapidly restore functionality.

This Special Issue aims to bring together the latest research advances and practical applications in the field of steel structures. Contributions presenting innovative approaches that enhance the efficiency, durability, resilience, and sustainability of steel structures across the entire industry chain and throughout the full product lifecycle are highly encouraged.

Dr. Sizhe Wang
Dr. Huangbin Liang
Dr. Hanqing Zhang
Guest Editors

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Keywords

  • metallic structure
  • green steel material
  • robotic fabrication
  • additive manufacturing
  • modular construction
  • structural maintenance
  • structural health monitoring
  • disaster risk analysis
  • structural retrofitting
  • recycle and reuse

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Published Papers (1 paper)

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Research

20 pages, 4624 KB  
Article
Crack Width Calculation Method for Concrete in Hogging Moment Region of Steel–UHPC–NC Composite Girder with Integrated Piers
by Li-Tao Yu, Chunbin Yu, Fawas. O. Matanmi and Zhiping Lin
Infrastructures 2026, 11(5), 178; https://doi.org/10.3390/infrastructures11050178 - 19 May 2026
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Abstract
The application of ultra-high performance concrete (UHPC) in the hogging moment region significantly enhances the crack resistance of concrete slabs of composite girders with integrated piers, while also providing economic benefits. To investigate the crack resistance performance and develop a calculation method for [...] Read more.
The application of ultra-high performance concrete (UHPC) in the hogging moment region significantly enhances the crack resistance of concrete slabs of composite girders with integrated piers, while also providing economic benefits. To investigate the crack resistance performance and develop a calculation method for crack width in hogging moment region of steel–UHPC–normal concrete (NC) composite girders, a full-scale bending test was conducted. Based on the test results, the post-cracking residual tensile strength of UHPC was determined according to the energy equivalence principle. A calculation method for reinforcement stress incorporating the tensile contribution of UHPC at a cracked section was proposed and then the applicability for current design codes for crack width calculation was evaluated. For the UHPC–NC interface, a corresponding crack width calculation method was developed. The results indicate that cracks initiated on the surface of the NC layer beneath the UHPC overlay at the cantilever root. Then cracks developed in sequence at the top surface of the UHPC layer cantilever root, the UHPC–NC interface, and the mid-plane of the girder-to-pier joint. Ultimately, UHPC cracks exhibited a “numerous and closely spaced” distribution, whereas NC cracks were “few and widely spaced.” When the residual tensile strength of UHPC at cracked section was considered, the mean value and average coefficient of variation in the ratios of calculated to measured reinforcement stresses for different sections were 1.07 and 0.10, respectively, which can be further used for crack width calculation. The mean ratios of code-predicted to measured UHPC crack widths for different sections using the Chinese code, French code, and European code were 1.10, 0.98, and 1.13, respectively, with corresponding average coefficients of variation of 0.25, 0.33, and 0.28; the Chinese code is recommended for UHPC crack width prediction. For the UHPC–NC interface, an expression for crack width calculation was derived using the comprehensive theory, and the mean ratio of calculated to measured values and the coefficient of variation were 1.08 and 0.18, respectively, demonstrating good predictive accuracy. Full article
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